IJMTES – DETECTION OF SELFISH NODE IN WIRELESS NETWORK USING WATCHDOG METHOD

Journal Title : International Journal of Modern Trends in Engineering and Science

Author’s Name : Brindha.S | P.Hemalatha  unnamed

Volume 03 Issue 05 2016

ISSN no:  2348-3121

Page no: 37-39

Abstract – In wired networks, there is no fixed and dedicated link available between the nodes. So any node can access any link between any nodes. Cooperative networking is currently receiving significant attention as an emerging network design approach for upcoming mobile wireless networks. The cooperation on these networks is usually contact based. Thus, in the real world, nodes could have a selfish behavior, being unwilling to forward packets for others. Selfishness means that some nodes decline to forward other nodes packets to save their own resources. The use of watchdogs is a well-known mechanism to sense selfish nodes. However, the recognition process performed by watchdogs can fail, generating false positives and false negatives that can bring to incorrect operations. Moreover, relying on local watchdogs alone can lead to poor act when sensing selfish nodes, in term of accuracy and speed. Thus, we propose collaborative contact-based watchdog (CoCoWa) as a collaborative approach to detect Selfish nodes.

Keywords— Cooperative Networking, Contact based, Wireless Networks 

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